MICROANATOMY

Detailed explanation-1: -Passive Immunity. Passive immunity is provided when a person is given antibodies to a disease rather than producing them through his or her own immune system. A newborn baby acquires passive immunity from its mother through the placenta.

Detailed explanation-2: -Artificial immunity can be active or passive. Figure: Immunity: Natural immunity occurs through contact with a disease causing agent, when the contact was not deliberate, where as artificial immunity develops only through deliberate actions of exposure.

Detailed explanation-3: -Passive immunization with serum or globulin (antibodies) from immune persons has been used to prevent viral infections. Immunoglobulins, such as those used against hepatitis and respiratory syncytial virus, are effective only for prevention, not for treatment.

Detailed explanation-4: -Passive immunity can occur naturally, such as when an infant receives a mother’s antibodies through the placenta or breast milk, or artificially, such as when a person receives antibodies in the form of an injection (gamma globulin injection).

Detailed explanation-5: -There are two types of passive immunity: artificial and natural.